Harvesting machine



Sept. 6, 1932. c, ENGELEN 1,876,137

HARVESTING MACHINE Filed NOV. 25, 1929 Hill lllllll //7 venfor: n a 3 H Patented Sept. 6, 1932 I j I I 1 7 131 UNITED STATES PATENT OFFICE j CARL ELTGELEN, or onnnveiannen rosrGLAivnonr BEZIRK osNABRUck, GERMAN-Y I nnnvnsiiiive Medians: Application luea November 5, 29, Serial m5. 409,679, and in Gama November 24, 1928.

The present inventionrelates to harvestgrate bars or rods 6, which for instance may ing machines and especially to potato digbe arranged transversely to the direction of gers. Y 1 l driving of the vehicle, and which are formed An important feature of the invention is, in such a manner that the earth will immethat the grate basket is formed from rigid diately dropout from the machine, whereas 55 oryielding grate bars of any desired cross-' the potatoes willbe conveyed to the rear part section which bars are movable re'lativelyto of the machine by means of the worm or coneach other. In order to facilitate the sepaveyer 4. ration of the weeds or Vines one side of the The worm may be formed with a conti'nnf sieve or grate basket is kept lower than the ou s or with an interrupted thread. In the 60- other one. Further; suitable weedremovlatter case'a propeller-shaped body isfob ing devices may be provided." Behind the 'ta'ined.

grate basket a conveyer" device may be ar- The outer periphery of V the worm is V ranged on which stones, clods of earth and equlpped 'Wlth pro ecting members, which the like finally are removed. for instance may have the form of pins 5 65 A constructional form of the invention is and which are arranged according to the shown byway of example'in the accompanyspace between the grate bars 6. During the ing drawing, in which, I I rotation of the worm thepins 5 will engage Fig. 1 is a. side view, partially in section with the' said bars, which on account of their" of a machine according to the invention. great length will not be deflected laterally Fig. 2 is a plan view of the same machine. to such a degree, that potatoes ofnormal size" Fig. 3 is'a cross-section on the lineA B can drop out between them. The grate basin Fig. 1. i y I ket will however be shaken rather vigorous- A horizontal or 'inclined' digging shoe 11 ly,so that earth and rubbish and other for '25: lifts the earth with the potatoes and the eign bodies'are prevented from adhering to 75 weeds. In order to prevent theearth from the parts of the same. Further, a 'weed' clinging to the digging shoe orfrom'dropwhich does not drop out at once will be cut ping down laterally discs 25.3 "are: mounted into pieces, lifted andejected from the ma- I to rotate at the sides ofthe said shoe. These chine. f I 50 discs may at Qand 3;be-adjus ted in-all di-- Bymeans of suitable devices such as'for S0 rections. Y instance panels, wiping-oft shovels or the On account of the earth adhering to. the like the weed may be deposited at such point said discs the earth willbejmoved overja where it does not hinder the further'operae further distancebecause the rotati'on of the tion.

v di is caused by the same rolling ongthe The sieve basket K may consist of single 85 I driving. Thebasket K consists of a insuch a manner, ithatweeds and the like earth. In orderto increase the driving force rods or of 'rodsarranged in groups. The the said discs may for n nce beflformed rods may beof circular, edged, triangular with toothed or wave-shaped peripheries, or of any other cross-section. In some cases A worm conveyor 4 having one, two or the grate rods 6 are rigid and in other cases more threads or spiral finsof any desired they are resiliently arranged,'for in t 9 pitch catches the earth mass and conveys'the in the manner indicated inFig. 3, so that same into a basket, hich vis arranged below the pinching oflstones, potatoes and the like the worm and which is disposed horiaonta'lbetween them is'efl'ectively'prevented. The 1y i inclined r s h 111 1 1 11 0f ends of the rods are bent or otherwise formed ralityof longitudinal and inclined members cannotcling to the same. The basket en- 10 and 11 mounted on the two cross bars 12 closesthe worm only partially and is'tilted and 13 which latter are supported on the to one side so that one side of the basketis machine frame 14.". In addition, thebasket lying .on a relativelylow level, as seen in" K is provided with" a series of transverse" Figs, 1' and 3; "As the'worm't (Fig. 3) re m0 7 b means of a suitable earin from the volves in an anti-clockwise direction indicated by the arrow thereon, it is evident that the weeds in the worm will be freed from the basket K at the right, and near the top of the worm 4. As the worm continues to revolve further, the weeds are carried along on the top of the Worm and deposited on the ground tangentially by gravity therefrom on the left side of the worm 4. At the inner end of the worm the potatoes are, delivered to any suitable conveyor de: vice 7 for instance an elevator, which is adapted to lift the potatoes. Simultaneously stones and other foreign bodies may be removedmanually so that only pure potatoes are delivered into the carts, baskets, bags or other containers to be filled. The potatoes may also if desired be deposited in rows, or groups in any desired manner.

The worm driving mechanism 8 may be actuated in different manners, for instance wheels of the machine, from a motor attached to the machine, or from the driving shaf'tfof the tractor.

H In order to prevent the weeds from clinging to the front parts of the worm a fined or movable conical or cylindrical protective mantle 9 is provided, which for operating in tall weeds may be equipped with cutting devices. a 7

The worm has preferably a diameter of about 500 mm; or more. The grate bars are adjustably arranged so that the width the intermediate spaces between thesame may be varied within reasonable limits.

-The pins 5 may be arranged in incl ned positions and may also be connected; m; such,

a manner that they may be adjusted tively to the periphery of the Worm; In order to reduce wear and friction the pins When designing the devices which receive the weed and the arrangementsby means of which the weed is removed from the apparatus .it should be borne in mind that the weed mustfbe ;de,-. posited in such manner and on such places; that the, working of the machine is not hln-f dered.

Having now particularly descrlbed and ascertained the nature of my said lnventioll and in what manner the same is tobe performed,

I declare that what I claim is 1. In a machine for harvesting agriculv tural products, a plurality of:res1l1ent and.

relatively Inovabletransverse rods forming a basket, arevoluble worm partially enclosed.

by said basket co-operating with said rods,

for separating the weeds and otherundesirvable material from the products'being gath:

ered, and means for actuatingithe worm and rods .by the forward travel of the machine.

2. In a machine for harvesting agricultural products, a plurality of resilientfand relatively movable transverse rods forminga basket, mounted on the machine, a worm conveyor in the basket, a plurality of pins on the edges of the worm, for cutting weeds and separating out undesirable material from the products being gathered, and means for actuating the worm and rods during the travel of the. machine.

3. In a machine for harvesting agricultural products, a revoluble worm conveyor mounted on the machine, a plurality of resil'ie'n't relatively movable transverse rods extending substantially around half the periphery of the worm, and forming an open b ket h re bout, and-a tuating mean for operating the conveyor, 'andmo'vable'rods, u pam el utth products ing ather drom he Weeds and Q he fun esirable of pins mounted. on the peripheral tins of:

the worm, a plurality of resilient and movable transverse. nods forming. a basket par,-

tially enclosing the wonmland (lo-operating.

therewith, for separating outthe products being gathered fromthe undesirable materialicollected by the worm;

(6. In zaimachine for harvesting agricultural products, arevoluble worm, a tilted open ibas-f ketmounted gon the machine eXtendi-ing from a'pointgnearthetop'of one side of the worm, to a -point on the opposite side of said worm, comprising a number of resilient and rel a.- tive'ly movable transverse-rods,- for separating the products being gathered from the undesirable material collected bytheworm, and a plurality of pins on the edges of the Worm. a

' 7 In a machine for harvesting -a-gricu ltural products, a -revoluble-worm, apair of longitudinal members mounted on the machine, azpluralityo'f-relatively movable trans verse rods-carriedon the longitudinal members, formingagrate-like partially open bas-' ket enclosing :the "worm from apoint near the-top of one s'ideof'same,as seen in cross e tio anoin mme-wher h t-p tom offthe worm on 'the opposite side of the ir l m r hle rs a r in iisr ih sk t and lift material collected, into the end of the worm.

In testimony whereof I have signed my name to this specification.

CARL ENGELEN. 

